A-LevelPhysicsForces, density and pressure9702/12 · May/June 2013 · Q141 Mark

A uniform beam of mass 1.4 kg is pivoted at P as shown. The beam has a length of 0.60 m and P is 0.20 m from one end. Loads of 3.0kg and 6.0kg are suspended 0.35m and 0.15m from the pivot as shown. [Figure showing a beam pivoted at P with forces and distances indicated] What torque must be applied to the beam in order to maintain it in equilibrium?

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A0.010 Nm

B0.10 Nm

C0.29 Nm

D2.8 Nm

✓ Correct answer

D: 2.8 Nm

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Topic: Forces, density and pressure, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, May/June 2013 Paper 1 Variant 2, question 14.

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